Fears for Tunisia's secular tradition

Saturday will mark exactly one year since Tunisia’s former President, Zine el-Abidine Ben Ali, fled to Saudi Arabia. In his absence, the country held its first truly democratic elections. The winners were Islamist party Ennahda, which for some threaten Tunisia's secular tradition. Already, one town in the north is now under the control of a group of Salafists - a sensitive situation, as our reporter David Thomson found out.